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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11201326 B1

PDFFull Text
Date of Patent:
Dec. 14, 2021

Filed:

Oct. 08, 2019

Metal-ion secondary battery

Applicant:

Sumitomo Rubber Industries, Ltd., Kobe, JP;

Inventors:

Tatsuya Kubo, Kobe, JP;

Akihiro Yamano, Yonezawa, JP;

Masanori Morishita, Yonezawa, JP;

Tetsuo Sakai, Yonezawa, JP;

Hideya Yoshitake, Yonezawa, JP;

Assignee:

SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 4/38 (2006.01); H01M 4/1397 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 10/052 (2010.01); H01M 10/0569 (2010.01); H01M 4/1391 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); H01M 4/0471 (2013.01); H01M 4/136 (2013.01); H01M 4/1391 (2013.01); H01M 4/1397 (2013.01); H01M 4/38 (2013.01); H01M 4/525 (2013.01); H01M 4/5815 (2013.01); H01M 4/625 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0028 (2013.01); Y02T 10/70 (2013.01);
Abstract

An object of the present disclosure is to provide a secondary battery having excellent cyclability by using a sulfur-based active material as a negative-electrode active material while preventing a reaction between an eluted polysulfide and a positive electrode. The metal-ion secondary battery comprises a negative electrode comprising a sulfur-containing compound as a negative-electrode active material, a positive electrode and an electrolyte, and has a polymer gel layer on a surface of the positive electrode.

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